{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Marc Pons",
    "hasEmail": "mailto:info@ceg.group"
  },
  "description": "This single-band float32 GeoTIFF raster represents a spatially smoothed vulnerability\nindex for sagebrush (Artemisia spp.) ecosystems at the northern extent of the sagebrush\nbiome, spanning the US–Canada border region from north-central Montana into\nsoutheastern Alberta and southwestern Saskatchewan, with smaller portions of Wyoming,\nNorth Dakota, and South Dakota (approximately 46.0°N to 51.1°N latitude, 102.0°W to\n113.3°W longitude). The area falls primarily within the Northwestern Glaciated Plains\nand Northwestern Great Plains ecoregions (EPA Level III / CEC ecoregion classification),\nwith its western edge reaching the Rocky Mountain Front and Canadian Rockies foothills.\nThis region is the northernmost range of the Greater Sage-Grouse (Centrocercus\nurophasianus), centered on the Milk River and Frenchman River basins, and is sometimes\nreferred to informally as the greater northern sagebrush biome. Vulnerability values\nare continuous and range from 1 (lowest vulnerability) to 8 (highest vulnerability),\nreflecting a composite assessment of exposure, sensitivity, and adaptive capacity of\nsagebrush ecosystems to stressors including climate change, invasive species (e.g.,\ncheatgrass, Bromus tectorum), wildfire, and land conversion. A focal mean filter with\na window size of 10 pixels was applied to the source vulnerability raster. At the\nnative 100 m (nominal, projected-CRS) cell resolution, this window corresponds to a\nnominal 1,000 m ground footprint — see Positional Accuracy below for a caveat on true\nground distance under this projection. This smoothing reduces local pixel-level noise\nand emphasizes landscape-scale vulnerability patterns. The raster is projected in\nWGS 84 / Pseudo-Mercator (EPSG:3857) — selected for compatibility with ArcGIS Online\npublishing — with a datum of WGS84 (not NAD83). Cells with no data are assigned IEEE 754\nNaN (float32).",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.5066/P14KPFAL",
      "description": "Landing page for access to the data",
      "format": "XML",
      "mediaType": "application/http",
      "title": "Digital Data"
    },
    {
      "@type": "dcat:Distribution",
      "description": "The metadata original format",
      "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6a3ece3e1ba49b7c2e2634db.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_6a3ece3e1ba49b7c2e2634db",
  "keyword": [
    "Alberta",
    "Artemisia",
    "EPSG:3857",
    "GeoTIFF",
    "Greater Sage-Grouse",
    "Montana",
    "North Dakota",
    "Northern Great Plains",
    "Northern Rocky Mountains",
    "Northwestern Glaciated Plains",
    "Northwestern Great Plains",
    "Saskatchewan",
    "South Dakota",
    "USGS:6a3ece3e1ba49b7c2e2634db",
    "WGS84",
    "Wyoming",
    "biota",
    "cheatgrass",
    "climate change",
    "conservation planning",
    "environment",
    "focal mean smoothing",
    "geoscientificInformation",
    "invasive species",
    "raster",
    "sagebrush",
    "sagebrush steppe",
    "shrubland",
    "vulnerability index",
    "wildfire"
  ],
  "modified": "2026-08-17T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-113.3097, 45.9977, -101.9756, 51.1180",
  "theme": [
    "geospatial"
  ],
  "title": "Greater Northern Sagebrush Vulnerability Map"
}